<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form method="post" enctype="multipart/form-data">
        <input type="text" name="city">
        <input  type="text" name="age">
        <input type="file" name="gender">
        <input type="submit">
    </form>
</body>
</html>

# 表单格式的数据
city=xxx&age=xxx&gender=xxx

